I've built 7 guns in the 18 years I've been building. I'm slow, really slow. I do the best I can, but make mistakes often, very often. A pre-carve can get you started off without allot of work on your part. A blank on the other hand allows you limitless options. From the choice of wood to choice of barrel, lock. In fact ALL parts YOU decide. The drop, the trigger pull, the cast off. You start to learn and appreciate the skill, knowledge, and amount of work that went into the making of a long rifle, and this will be something that YOU made, and not something that somebody started for you. These are my thoughts......Geo.